Mounted with PAF2929-PAF2952, PAF2954-PAF2956.; Page number 25. A ship-builder and repairer called Christopher Watson installed a floating dock in the Thames at Rotherhithe in 1785, reportedly converted from the hull of an old ship. He was successfully indicted by the Corporation of London at Kingston Assizes for obstructing navigation on the river, but the dock appears to have remained in use into the 19th century. Samuel Gamble includes an illustration of the slave-ship 'Sandown' in it in January 1793 in an illustrated log (LOG/M/21) and it is later recorded in a print by W.B. Cooke after a drawing by Francia, of which there are copies in the collection. While there is no evidence that Charnock's drawing is of Watson's dock, it could be, given his interest in naval architecture and the fact he lived in Blackheath in the 1790s. [PvdM 4/12]